Mailinglist Archive: opensuse (856 mails)

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Re: [opensuse] System slowdowns
On 10/10/2016 5:45 AM, Carlos E. R. wrote:
On 2016-10-10 14:02, Anton Aylward wrote:
On 10/10/2016 07:02 AM, Carlos E. R. wrote:
I like reiserfs a lot, but I limit its
total size. All the reiserfs partitions share the same cpu thread,
reiserfs does not scale well.
Yes that is going to be critical on a heavily multi-user system, each user
having thread sunder a ReiserFS home or having their own ReiserFS partition.

But for a single user where the SYSTEM is on BtrFS or ext4 having a single
operation on a ReiserFS isn't a problem. In may case I have all my Photography
there, specifically to get around the inode pre-allocation problem of ext4.
I use reiserfs on partitions where I expect many small files. I have
several partitions, and you hit the single thread problem when copying
between two RS partitions.

For photos I use XFS, photos are relatively big, and there is no problem
with inodes: if I remember correctly they are dynamic as well.

Thanks Anton, Carlos for your thoughts on file systems. I have used Yast to partition a new drive and laid it out in the same way as the drive that was showing some signs of failing. I noted that for partitions on which one wants to install an OS, it suggests using BtrFS and for data is suggests using XFS, so that is what I chose. (2 primary partitions with BtrFS for future usage, and 4 partitions with XFS for everything else.) Then I used rsync (nice tool BTW, I like the fact that it is easy to preserve all the file attributes as well, and that it is really fast!) to copy all the files from each of the partitions on the old drive to the new one. I am not sure I want to remove the old drive from my system yet as I like to keep the option to drop back to a previous OS in the event that something else fails, and I don't think my older OS's will understand these new file systems that I am now using. So I will just remove the mount points for those old partitions from my openSuSE42.1.

Of note also, I noticed that Yast's Partitioner does not provide the option to create Reiser filesystems.

On the downside however, I have not seen any improvement in my heavy CPU usage problem yet. :-( Too tired to do anything more tonight but will do some more testing tomorrow and see if using Dolphin to copy/move/delete files on the new drive still drives the CPU usage up to 100%...


"The Truth is out there" - Spooky

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